The more I play the Ohm's the more I'm impressed with the seamlessness of the sound... must be the large frequency range covered by that Walsh driver. And the midrange... wow! Female voices sound stunning.
I will also say with pleasure that there's not a hint of glare or harshness here... these speakers sound like music, not like "hi-fi."
I called John at Ohm today and thanked him, and told him how delighted I am with the MWT's. He asked me how I thought they compared with the Arro, and I described the increased bass authority and texture, the sense of air and space around the instruments, the depth of the soundstage (the back wall "disappearing") and so on.
He said that the MWT's take between 60 and 100 hours to fully break in, and that they'll keep sounding better. He said that bass extension and midrange sweetness will improve, while the highs should remain fairly well the same.
He also said that the biggest mistake people make with the Ohm's is pulling them too far off the back wall. He was really appreciative of my call.